1 ; RUN: opt < %s -scalarrepl -S | FileCheck %s 2 target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64" 3 @C.0.1248 = internal constant [128 x float] [ float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float -1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float -1.000000e+00, float 1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float -1.000000e+00, float 0.000000e+00, float 1.000000e+00, float 1.000000e+00, float 1.000000e+00 ], align 32 ; <[128 x float]*> [#uses=1] 4 5 define float @test1(i32 %hash, float %x, float %y, float %z, float %w) { 6 entry: 7 %lookupTable = alloca [128 x float], align 16 ; <[128 x float]*> [#uses=5] 8 %lookupTable1 = bitcast [128 x float]* %lookupTable to i8* ; <i8*> [#uses=1] 9 call void @llvm.memcpy.i32( i8* %lookupTable1, i8* bitcast ([128 x float]* @C.0.1248 to i8*), i32 512, i32 16 ) 10 11 ; CHECK: @test1 12 ; CHECK-NOT: alloca 13 ; CHECK-NOT: call{{.*}}@llvm.memcpy 14 ; CHECK: %lookupTable1 = bitcast [128 x float]* @C.0.1248 to i8* 15 ; CHECK-NOT: call{{.*}}@llvm.memcpy 16 17 %tmp3 = shl i32 %hash, 2 ; <i32> [#uses=1] 18 %tmp5 = and i32 %tmp3, 124 ; <i32> [#uses=4] 19 %tmp753 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp5 ; <float*> [#uses=1] 20 %tmp9 = load float* %tmp753 ; <float> [#uses=1] 21 %tmp11 = fmul float %tmp9, %x ; <float> [#uses=1] 22 %tmp13 = fadd float %tmp11, 0.000000e+00 ; <float> [#uses=1] 23 %tmp17.sum52 = or i32 %tmp5, 1 ; <i32> [#uses=1] 24 %tmp1851 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp17.sum52 ; <float*> [#uses=1] 25 %tmp19 = load float* %tmp1851 ; <float> [#uses=1] 26 %tmp21 = fmul float %tmp19, %y ; <float> [#uses=1] 27 %tmp23 = fadd float %tmp21, %tmp13 ; <float> [#uses=1] 28 %tmp27.sum50 = or i32 %tmp5, 2 ; <i32> [#uses=1] 29 %tmp2849 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp27.sum50 ; <float*> [#uses=1] 30 %tmp29 = load float* %tmp2849 ; <float> [#uses=1] 31 %tmp31 = fmul float %tmp29, %z ; <float> [#uses=1] 32 %tmp33 = fadd float %tmp31, %tmp23 ; <float> [#uses=1] 33 %tmp37.sum48 = or i32 %tmp5, 3 ; <i32> [#uses=1] 34 %tmp3847 = getelementptr [128 x float]* %lookupTable, i32 0, i32 %tmp37.sum48 ; <float*> [#uses=1] 35 %tmp39 = load float* %tmp3847 ; <float> [#uses=1] 36 %tmp41 = fmul float %tmp39, %w ; <float> [#uses=1] 37 %tmp43 = fadd float %tmp41, %tmp33 ; <float> [#uses=1] 38 ret float %tmp43 39 } 40 41 declare void @llvm.memcpy.i32(i8*, i8*, i32, i32) 42 43 44 45 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind 46 47 %T = type { i8, [123 x i8] } 48 49 @G = constant %T {i8 1, [123 x i8] zeroinitializer } 50 51 define void @test2() { 52 %A = alloca %T 53 %B = alloca %T 54 %a = bitcast %T* %A to i8* 55 %b = bitcast %T* %B to i8* 56 57 ; CHECK: @test2 58 59 ; %A alloca is deleted 60 ; CHECK-NEXT: %B = alloca %T 61 62 ; use @G instead of %A 63 ; CHECK-NEXT: %a = bitcast %T* @G to i8* 64 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false) 65 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %b, i8* %a, i64 124, i32 4, i1 false) 66 call void @bar(i8* %b) 67 ret void 68 } 69 70 declare void @bar(i8*) 71 72 73 ;; Should be able to eliminate the alloca. 74 define void @test3() { 75 %A = alloca %T 76 %a = bitcast %T* %A to i8* 77 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false) 78 call void @bar(i8* %a) readonly 79 ; CHECK: @test3 80 ; CHECK-NEXT: %a = bitcast %T* @G to i8* 81 ; CHECK-NEXT: call void @bar(i8* %a) 82 ret void 83 } 84 85 define void @test4() { 86 %A = alloca %T 87 %a = bitcast %T* %A to i8* 88 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false) 89 call void @baz(i8* byval %a) 90 ; CHECK: @test4 91 ; CHECK-NEXT: %a = bitcast %T* @G to i8* 92 ; CHECK-NEXT: call void @baz(i8* byval %a) 93 ret void 94 } 95 96 declare void @llvm.lifetime.start(i64, i8*) 97 define void @test5() { 98 %A = alloca %T 99 %a = bitcast %T* %A to i8* 100 call void @llvm.lifetime.start(i64 -1, i8* %a) 101 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast (%T* @G to i8*), i64 124, i32 4, i1 false) 102 call void @baz(i8* byval %a) 103 ; CHECK: @test5 104 ; CHECK-NEXT: %a = bitcast %T* @G to i8* 105 ; CHECK-NEXT: call void @baz(i8* byval %a) 106 ret void 107 } 108 109 110 declare void @baz(i8* byval) 111
